| Sold | Grade | Monthly Average |
| Oct 2024 | 4.0 | $8.40 |
| Nov 2016 | 8.0 | $19.20 |
| Nov 2023 | 6.0 | $9.98 |
| Jul 2020 | 6.0 | $10.50 |
| Mar 2019 | 6.0 | $10.50 |
| Feb 2017 | 6.0 | $10.50 |
| Jul 2015 | 5.5 | $10.00 |
| Aug 2023 | 4.5 | $7.70 |
| Jun 2021 | 4.5 | $7.70 |
| Jan 2024 | 4.0 | $7.00 |
| Jan 2022 | 4.0 | $7.00 |
| Feb 2014 | 4.0 | $7.00 |
| Dec 2010 | 4.0 | $5.00 |
| Jun 2024 | 3.0 | $4.90 |
| Dec 2017 | 3.0 | $4.90 |
| Jan 2018 | 2.5 | $2.49 |
| Mar 2021 | 2.0 | $3.49 |
| Mar 2020 | 2.0 | $3.49 |
| Nov 2017 | 2.0 | $2.10 |
| Nov 2020 | 1.8 | $2.88 |
| May 2017 | 1.8 | $3.20 |